Nemesis Sub-Terra has been rated 12A by BBFC because it is apparently extremely scary for people under the age of 12 this reminds me of; Saw The Ride and Saw Alive at Thorpe Park which both a recommendation of over the age of 12 years old.

Such a simple drop tower! The Only reason the Extremises got the age restriction is due to the rest of the Dungeons, not the ride itself. Thing is though, Not many people under 12 will be over the 1.2 height limit.